I have been raising chickens and ducks since about 2008 and I have had an aray of different coop and run setups. I tried the chicken tractors and the at one point I had a massive maze of chicken runs. What is wrong with just going this simple way. In the past I had to deal with short runs and so on. This time I went simple and just put up a couple dog panel pens and now I just open the door and walk in and very little work was involved in makeing this type pen. So why dont more people go with this simple way? Is there a problem that I'm not seeing?